Onobrychis Miller

71. Onobrychis Miller View in CoL 1

Annual or perennial herbs. Leaves imparipinnate; stipules free or connate. Flowers in axillary racemes. Calyx campanulate, with 5 equal teeth; corolla white, pink or purple, rarely yellow; stamens diadelphous. Legume indéhiscent, more or less orbicular and compressed, with a distinct, usually toothed, margin and foveolate to reticulate-veined sides which often have teeth on the veins or ridges. Seeds 1-3.

Literature: H. Handel-Mazzetti, Österr. Bot. Zeitschr. 59: 369-378, 424-430, 479-488 (1909); 60: 5-12, 64-71 (1910). G. Sirjaev, Pubi. Fac. Sci. Univ. Masaryk 56: 1-195 (1925); 76: 1-165 (1926); 242: 1 -14 (1937); Bull. Soc. Bot. Bulg. 4: 7-24 (1931).

1 Annual; racemes not more than 8-flowered

2 Corolla 7-8 mm; legume with linear-triangular to subulate teeth on the margin 22. caput-galli 2 Corolla 10-14 mm; legume with broadly triangular teeth on

the margin 23. aequidentata 1 Perennial; racemes usually at least 10-flowered

3 Standard pubescent on the back; legume with 2 rows of teeth

on the margin, rarely unarmed; stipules usually free

4 Leafletssparselypubescentand green beneath;marginof the legume with teeth 0-5-1 -5 mm 3. radiata 4 Leafletsdenselygrey-tomentosebeneath; marginofthe legume with teeth not more than 0-5 mm, or unarmed

5 Sides of the legume unarmed or tuberculate; margin unarmed or with minute teeth 1. hypargyrea 5 Sides of the legume toothed; margin with teeth up to

0-5 mm 2. pallasii

3 Standard glabrous; legume with 1 row of teeth on the margin

or unarmed; stipules usually connate

6 Standard atleast1-2 timesaslong asthe keel

7 Calyx-teeth 2-3 times as long as tube

8 Calyx densely hirsute; legume with long hairs (0-5 mm or

more) 6. ebenoides

8 Calyx sparsely pubescent; legume with short hairs (less

than 0-5 mm) 7. supina

7 Calyx-teeth 1-2 times as long as tube

9 Calyx glabrous except for the pubescent margin; margin

of the legume unarmed or with teeth not more than

3 mm 8. gracilis

9 Calyx pubescent; margin of the legume with some teeth at

least 3 mm 9. pindicola

6 Standard shorterthan to slightly longerthan keel

10 Standard at least 5 mm shorter than keel 10. stenorhiza

10 Standard not more than 2 mm shorter than keel

11 Wings 7-8 mm, distinctly exceeding calyx

12 Margin of the legume unarmed or tuberculate; stems

usually very short, rarely up to 40 cm 4. saxatilis

12 Margin of the legume with 6-7 teeth; stems 30-60 cm

5. petraea

11 Wings not more than 6(—7) mm, shorter than calyx

13 Legume densely pubescent or villous, the hairs at least

0-5 mm

14 Standard emarginate; margin of the legume with teeth

3-6 mm 14. peduncularis

14 Standard entire or truncate; margin of the legume with

teeth not more than 3 mm

15 Leaflets 12-16 pairs; corolla purple; margin oflegume

with 8-10 teeth 13. sphaciotica

15 Leaflets 6-12 pairs; corolla white or pink; margin of

legume with 3-6 teeth

16 Stems pubescent, the hairs less than 1 mm; legume

4-7 mm 11. alba

16 Stems villous, the hairs 1 mm or more; legume

8-10 mm 12. degenii

13 Legume with hairs less than 0-5 mm

17 Calyx longer than keel 16. reuteri

17 Calyx shorter than keel

18 Standard 1-2 mm shorter than keel 17. montana

18 Standard less than 1 mm shorter than to slightly longer

than keel

19 Corolla (9—) 10—14 mm

20 Corolla usually white with pink veins; margin of the

legume with teeth at least 3 mm (Spain)

14. peduncularis

20 Corolla pink or purple; margin of the legume with

teeth not more than 3(—4) mm

21 Leaflets densely silvery pubescent beneath

15. argentea 21 Leaflets green or greyish beneath 22 Legume (6-)7-12 mm, the teeth on the margin

usually 2-4 mm 17. montana

22 Legume 4-8 mm, the teeth on the margin not

more than 2 mm

23 Calyx-teeth with long ± patent hairs 21. viciifolia

23 Calyx-teeth with appressed or ± erecto-patent

hairs

24 Plant with non-flowering rosettes of leaves at

the base; margin of the legume with teeth

not more than 1 mm 15. argentea

24 Plant without non-flowering rosettes of leaves;

margin of the legume with teeth 0-5-2 mm

18. arenaria 19 Corolla 5-10 mm

25 Margin of the legume with teeth 2-4 mm 18. arenaria

25 Margin of the legume with teeth not more than

2 mm

26 Leaflets ± densely grey-pubescent, at least be­

neath; calyx-teeth with ± patent hairs

19. oxyodonta

26 Leaflets green or grey-green, glabrous to pubes­ cent; calyx-teeth with appressed or erecto-patent hairs, or glabrous

27 Legume ± toothed 18. arenaria 27 Legume unarmed, rarely slightly tuberculate

20. inennis